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hc
2023-12-11 6778948f9de86c3cfaf36725a7c87dcff9ba247f 
 kernel/drivers/net/wireless/ath/ath10k/htc.h
....@@ -1,18 +1,7 @@
1
+/* SPDX-License-Identifier: ISC */
12 /*
23  * Copyright (c) 2005-2011 Atheros Communications Inc.
34  * Copyright (c) 2011-2016 Qualcomm Atheros, Inc.
4
- *
5
- * Permission to use, copy, modify, and/or distribute this software for any
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- * purpose with or without fee is hereby granted, provided that the above
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- * copyright notice and this permission notice appear in all copies.
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- *
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- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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- * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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- * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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- * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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- * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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- * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
165  */
176 
187 #ifndef _HTC_H_
....@@ -23,6 +12,7 @@
2312 #include <linux/bug.h>
2413 #include <linux/skbuff.h>
2514 #include <linux/timer.h>
15
+#include <linux/bitfield.h>
2616 
2717 struct ath10k;
2818 
....@@ -50,8 +40,7 @@
5040  * 4-byte aligned.
5141  */
5242 
53
-#define HTC_HOST_MAX_MSG_PER_RX_BUNDLE        8
54
-#define HTC_HOST_MAX_MSG_PER_TX_BUNDLE        16
43
+#define HTC_HOST_MAX_MSG_PER_RX_BUNDLE        32
5544 
5645 enum ath10k_htc_tx_flags {
5746 	ATH10K_HTC_FLAG_NEED_CREDIT_UPDATE = 0x01,
....@@ -61,8 +50,26 @@
6150 enum ath10k_htc_rx_flags {
6251 	ATH10K_HTC_FLAGS_RECV_1MORE_BLOCK = 0x01,
6352 	ATH10K_HTC_FLAG_TRAILER_PRESENT = 0x02,
64
-	ATH10K_HTC_FLAG_BUNDLE_MASK     = 0xF0
6553 };
54
+
55
+#define ATH10K_HTC_FLAG_BUNDLE_MASK GENMASK(7, 4)
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+
57
+/* bits 2-3 are for extra bundle count bits 4-5 */
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+#define ATH10K_HTC_BUNDLE_EXTRA_MASK GENMASK(3, 2)
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+#define ATH10K_HTC_BUNDLE_EXTRA_SHIFT 4
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+
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+static inline unsigned int ath10k_htc_get_bundle_count(u8 max_msgs, u8 flags)
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+{
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+	unsigned int count, extra_count = 0;
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+
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+	count = FIELD_GET(ATH10K_HTC_FLAG_BUNDLE_MASK, flags);
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+
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+	if (max_msgs > 16)
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+		extra_count = FIELD_GET(ATH10K_HTC_BUNDLE_EXTRA_MASK, flags) <<
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+			ATH10K_HTC_BUNDLE_EXTRA_SHIFT;
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+
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+	return count + extra_count;
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+}
6673 
6774 struct ath10k_htc_hdr {
6875 	u8 eid; /* @enum ath10k_htc_ep_id */
....@@ -76,8 +83,14 @@
7683 		u8 seq_no; /* for tx */
7784 		u8 control_byte1;
7885 	} __packed;
79
-	u8 pad0;
80
-	u8 pad1;
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+	union {
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+		__le16 pad_len;
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+		struct {
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+			u8 pad0;
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+			u8 pad1;
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+		} __packed;
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+	} __packed;
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+
8194 } __packed __aligned(4);
8295 
8396 enum ath10k_ath10k_htc_msg_id {
....@@ -106,6 +119,8 @@
106119 #define ATH10K_HTC_CONN_FLAGS_RECV_ALLOC_LSB  8
107120 };
108121 
122
+#define ATH10K_HTC_MSG_READY_EXT_ALT_DATA_MASK 0xFFF
123
+
109124 enum ath10k_htc_conn_svc_status {
110125 	ATH10K_HTC_CONN_SVC_STATUS_SUCCESS      = 0,
111126 	ATH10K_HTC_CONN_SVC_STATUS_NOT_FOUND    = 1,
....@@ -113,6 +128,10 @@
113128 	ATH10K_HTC_CONN_SVC_STATUS_NO_RESOURCES = 3,
114129 	ATH10K_HTC_CONN_SVC_STATUS_NO_MORE_EP   = 4
115130 };
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+
132
+#define ATH10K_MAX_MSG_PER_HTC_TX_BUNDLE        32
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+#define ATH10K_MIN_MSG_PER_HTC_TX_BUNDLE        2
134
+#define ATH10K_MIN_CREDIT_PER_HTC_TX_BUNDLE     2
116135 
117136 enum ath10k_htc_setup_complete_flags {
118137 	ATH10K_HTC_SETUP_COMPLETE_FLAGS_RX_BNDL_EN = 1
....@@ -138,8 +157,14 @@
138157 	struct ath10k_htc_ready base;
139158 	u8 htc_version; /* @enum ath10k_htc_version */
140159 	u8 max_msgs_per_htc_bundle;
141
-	u8 pad0;
142
-	u8 pad1;
160
+	union {
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+		__le16 reserved;
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+		struct {
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+			u8 pad0;
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+			u8 pad1;
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+		} __packed;
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+	} __packed;
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+
143168 } __packed;
144169 
145170 struct ath10k_htc_conn_svc {
....@@ -346,7 +371,12 @@
346371 
347372 	u8 seq_no; /* for debugging */
348373 	int tx_credits;
374
+	int tx_credit_size;
349375 	bool tx_credit_flow_enabled;
376
+	bool bundle_tx;
377
+	struct sk_buff_head tx_req_head;
378
+	struct sk_buff_head tx_complete_head;
379
+
350380 };
351381 
352382 struct ath10k_htc_svc_tx_credits {
....@@ -371,16 +401,25 @@
371401 	int total_transmit_credits;
372402 	int target_credit_size;
373403 	u8 max_msgs_per_htc_bundle;
404
+	int alt_data_credit_size;
374405 };
375406 
376407 int ath10k_htc_init(struct ath10k *ar);
377408 int ath10k_htc_wait_target(struct ath10k_htc *htc);
409
+void ath10k_htc_setup_tx_req(struct ath10k_htc_ep *ep);
378410 int ath10k_htc_start(struct ath10k_htc *htc);
379411 int ath10k_htc_connect_service(struct ath10k_htc *htc,
380412 			       struct ath10k_htc_svc_conn_req  *conn_req,
381413 			       struct ath10k_htc_svc_conn_resp *conn_resp);
414
+void ath10k_htc_change_tx_credit_flow(struct ath10k_htc *htc,
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+				      enum ath10k_htc_ep_id eid,
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+				      bool enable);
382417 int ath10k_htc_send(struct ath10k_htc *htc, enum ath10k_htc_ep_id eid,
383418 		    struct sk_buff *packet);
419
+void ath10k_htc_stop_hl(struct ath10k *ar);
420
+
421
+int ath10k_htc_send_hl(struct ath10k_htc *htc, enum ath10k_htc_ep_id eid,
422
+		       struct sk_buff *packet);
384423 struct sk_buff *ath10k_htc_alloc_skb(struct ath10k *ar, int size);
385424 void ath10k_htc_tx_completion_handler(struct ath10k *ar, struct sk_buff *skb);
386425 void ath10k_htc_rx_completion_handler(struct ath10k *ar, struct sk_buff *skb);